1 /* 2 * Copyright (c) 2019-2020, ARM Limited. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #ifndef FCONF_H 8 #define FCONF_H 9 10 #include <stdint.h> 11 12 /* Public API */ 13 #define FCONF_GET_PROPERTY(a, b, c) a##__##b##_getter(c) 14 15 #define FCONF_REGISTER_POPULATOR(name, callback) \ 16 __attribute__((used, section(".fconf_populator"))) \ 17 const struct fconf_populator name##__populator = { \ 18 .info = #name, \ 19 .populate = callback \ 20 }; 21 22 /* 23 * Populator callback 24 * 25 * This structure are used by the fconf_populate function and should only be 26 * defined by the FCONF_REGISTER_POPULATOR macro. 27 */ 28 struct fconf_populator { 29 /* Description of the data loaded by the callback */ 30 const char *info; 31 32 /* Callback used by fconf_populate function with a provided config dtb. 33 * Return 0 on success, err_code < 0 otherwise. 34 */ 35 int (*populate)(uintptr_t config); 36 }; 37 38 /* Top level populate function 39 * 40 * This function takes a configuration dtb and calls all the registered 41 * populator callback with it. 42 * 43 * Panic on error. 44 */ 45 void fconf_populate(uintptr_t config); 46 47 #endif /* FCONF_H */ 48